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Rifles, Reloading, Optics, Equipment
Reloading
260 load development finial update
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<blockquote data-quote="Greyfox" data-source="post: 1293723" data-attributes="member: 10291"><p><strong>Re: 260 load development finial up</strong></p><p></p><p>My LRP in 260 that now has over 1200 rounds down the tube developed its best accuracy with my original load of 45gr H4831sc, Federal 210M. I could use either 142SMK's seated .025" off the lands, or Berger 140's seated .010" off the lands. Velocity with this load runs 2720FPS, ES<12FPS. While there are no visible pressure signs, I could only get two reloads before my primer pockets loosened. I have tried Lapua, Norma, and Remington brass. All will produce quite similar accuracy, and velocity but still exhibit the same primer pocket issue. This problem was finally resolved somewhat backing my charge down to 43.7gr of H4831sc. Velocity at this charge dropped to 2600FPS with accuracy and ES maintained, but enabled me to get 3-5 reloads using Norma brass. I have tried H4350, but accuracy is inferior in my rifle. I'm not sure if it's my particular chamber causing the issue, but I'm loathe to mess with the gun, given the exceptional accuracy I get. It serves as my competitive Egg Shooter, accounting for numerous wins competing against full custom BR rifles.</p><p>Best 100 yard 3 shot group using H4831sc, Fed210M, 142 SMK, Norma brass, generally shoots in the low 2's. Holds accuracy for 200+ shots between cleaning. My buddy took the picture at one of the Egg Shoots, LRP with NF 8x32 BR.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1293723, member: 10291"] [b]Re: 260 load development finial up[/b] My LRP in 260 that now has over 1200 rounds down the tube developed its best accuracy with my original load of 45gr H4831sc, Federal 210M. I could use either 142SMK's seated .025" off the lands, or Berger 140's seated .010" off the lands. Velocity with this load runs 2720FPS, ES<12FPS. While there are no visible pressure signs, I could only get two reloads before my primer pockets loosened. I have tried Lapua, Norma, and Remington brass. All will produce quite similar accuracy, and velocity but still exhibit the same primer pocket issue. This problem was finally resolved somewhat backing my charge down to 43.7gr of H4831sc. Velocity at this charge dropped to 2600FPS with accuracy and ES maintained, but enabled me to get 3-5 reloads using Norma brass. I have tried H4350, but accuracy is inferior in my rifle. I'm not sure if it's my particular chamber causing the issue, but I'm loathe to mess with the gun, given the exceptional accuracy I get. It serves as my competitive Egg Shooter, accounting for numerous wins competing against full custom BR rifles. Best 100 yard 3 shot group using H4831sc, Fed210M, 142 SMK, Norma brass, generally shoots in the low 2's. Holds accuracy for 200+ shots between cleaning. My buddy took the picture at one of the Egg Shoots, LRP with NF 8x32 BR. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
260 load development finial update
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